Search found 85 matches
Thank you Anurag. Source is GMATPrep. So answer is D, right? 1) z<x falls into case 2. 2) y>0 falls into case 2.
- by dreamv
Wed Feb 29, 2012 9:52 am- Forum: Data Sufficiency
- Topic: |x-z|+|x|=|z|?
- Replies: 3
- Views: 1404
median
x, 3, 1, 12, 8
If x is an integer, is the median of the 5 numbers shown greater than the average of the 5 numbers?
1) x>6
2) x is greater than the median of the 5 numbers
- by dreamv
Tue Feb 28, 2012 4:54 pm- Forum: Data Sufficiency
- Topic: median
- Replies: 2
- Views: 1228
- by dreamv
Tue Feb 28, 2012 4:53 pm- Forum: Data Sufficiency
- Topic: |x-z|+|x|=|z|?
- Replies: 3
- Views: 1404
book borrowing
In a class of 30 students, 2 students did not borrow any books from the library, 12 students each borrowed 1 book, 10 students each borrowed 2 books, and the rest of the students each borrowed at least 3 books. If the average number of books borrowed per student was 2, what is the maximum number of ...
- by dreamv
Tue Feb 28, 2012 4:46 pm- Forum: Problem Solving
- Topic: book borrowing
- Replies: 3
- Views: 1604
chemical reaction
The rate of a certain chemical reaction is directly proportional to the square of the concentration of chemical A present and inversely proportional to the concentration of chemical B present. If the concentration of chemical B is increased by 100 percent, which of the following is closest to the pe...
- by dreamv
Mon Feb 27, 2012 10:01 pm- Forum: Problem Solving
- Topic: chemical reaction
- Replies: 2
- Views: 2169
- by dreamv
Mon Feb 27, 2012 9:27 pm- Forum: Sentence Correction
- Topic: Tomato
- Replies: 4
- Views: 1384
Tomato
Though now eaten in large quantities around the world and harmless, the tomato is a member of the generally toxic nightshade family, including belladonna, and was once thought to be poisonous itself as a result. A.Though now eaten in large quantities around the world and harmless, the tomato is a m...
- by dreamv
Sun Feb 26, 2012 12:00 am- Forum: Sentence Correction
- Topic: Tomato
- Replies: 4
- Views: 1384
Oh, I got it. Sorry for typo. That's why I got confused..I corrected on my original posting. Thank you for your explanation and drawing.
- by dreamv
Sat Feb 25, 2012 10:29 pm- Forum: Data Sufficiency
- Topic: cicular area
- Replies: 6
- Views: 1209
A certain circular area has its center at point P and has radius 4, and points X and Y lie in the same plane as the circular area. Does point Y lie outside the circular area? 1) The distance between point P and point X is 4.5 2) The distance between point P and point Y is 9. I was not asking about s...
- by dreamv
Sat Feb 25, 2012 7:31 pm- Forum: Data Sufficiency
- Topic: cicular area
- Replies: 6
- Views: 1209
OG diagnostic test #20
In the past, most children who went sledding in the winter snow in Verland used wooden sleds with runners and steering bars. Ten years ago, smooth plastic sleds became popular; they go faster than wooden sleds but are harder to steer and slow. The concern that plastic sleds are more dangerous is cle...
- by dreamv
Sat Feb 25, 2012 7:19 pm- Forum: Critical Reasoning
- Topic: OG diagnostic test #20
- Replies: 2
- Views: 1183
It was on GMATPrep. I chose B, too. But OA is not B. What does "Point X and Y lie in the same plane as the circular area" mean here? Some drawing might help, but I am not quite sure about the language here.
- by dreamv
Sat Feb 25, 2012 4:44 pm- Forum: Data Sufficiency
- Topic: cicular area
- Replies: 6
- Views: 1209
radio station
On his drive to work, Leo listens to one of three radio stations, A,B,or C. He first turns to A. If A is playing a song he likes, he listens to it;if not, he turns to B. If B is playing a song he likes, he listens to it; if not, he turns to C. If C is paying a song he likes, he listens to it;if not,...
- by dreamv
Thu Feb 23, 2012 11:25 pm- Forum: Problem Solving
- Topic: radio station
- Replies: 3
- Views: 2182
cicular area
A certain circular area has its center at point P and has radius 4, and points X and Y lie in the same plane as the circular area. Does point Y lie outside the circular area?
1) The distance between point P and point X is 4.5
2) The distance between point X and point Y is 9.
- by dreamv
Thu Feb 23, 2012 11:16 pm- Forum: Data Sufficiency
- Topic: cicular area
- Replies: 6
- Views: 1209
- by dreamv
Thu Feb 23, 2012 4:48 pm- Forum: Data Sufficiency
- Topic: X1
- Replies: 2
- Views: 895
machines
Machines X and Y work at their respective constant rates. How many more hours does it take machine Y, working alone, to fill a production order of a certain size than it takes machine X, working alone? 1) Machine X and Y, working together, fill a production order of this size in two-thirds the time ...
- by dreamv
Wed Feb 22, 2012 9:09 pm- Forum: Data Sufficiency
- Topic: machines
- Replies: 3
- Views: 4104